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Title: Photoconductivity measurements of x-ray absorption fine structures in liquids in the soft x-ray region: Si and Cl K-edge

Photoconductivity measurements of X-ray absorption fine structures (XAFS) at the Si and Cl K-edge have been carried out in a liquid cell for (CH[sub 3])[sub 4],Si [(CH[sub 3])[sub 3]Si][sub 4]Si and eitheras a pure liquid or 2,2,4-trimethylpentane solution. It is found that for the pure liquids and their concentrated hydrocarbon solutions, all K-edge XAFS spectra are inverted as expected under the condition of total absorption. A sharp conductivity dip is also observed in CCl[sub 4] at the Cl K-edge. The concentration dependence of the XAFS spectrum of CCl[sub 4] is reported. These results are discussed in terms of soft X-ray induced ion yields of the solute and solvent molecules in liquids.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. (University of Western Ontario, London, ON (Canada). Dept. of Chemistry)
  2. (Brookhaven National Lab., Upton, NY (United States))
  3. (Chicago Univ., IL (United States))
Publication Date:
OSTI Identifier:
6715847
Report Number(s):
BNL-48487; CONF-9208160--6
ON: DE93006670
DOE Contract Number:
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Conference: 7. international conference on x-ray absorption fine structure, Kobe (Japan), 23-29 Aug 1992
Research Org:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Org:
DOE; NSF; CANSERC; ONCMR; USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada); Ontario Centre for Materials Research, Kingston, ON (Canada)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 42 ENGINEERING; CARBON TETRACHLORIDE; PHOTOCONDUCTIVITY; ORGANIC SILICON COMPOUNDS; ALKANES; FINE STRUCTURE; LIQUIDS; SOLUTIONS; X-RAY SPECTRA; CHLORINATED ALIPHATIC HYDROCARBONS; DISPERSIONS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; FLUIDS; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROCARBONS; MIXTURES; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PHYSICAL PROPERTIES; SPECTRA 400500* -- Photochemistry; 420500 -- Engineering-- Materials Testing